Coil feeding apparatus



Dec. 16, 1941. s. NYBERG 2,266,067

0011. FEEDING APPARATUS Filed April 29. 1939 4 Sheets-Sheet '1 v 066 I 0 o Jib/w Aide/y Dec.- 16, 1941. S NY ERGB 2,266,067

COIL FEEDING APPARATUS Filed April 29, 1939 4 Sheets-Sheet 3 Dec. 16, 1941. s. NYgERG 2,266,067

COIL FEEDING APPARATUS Filed April 29; 1939 4 Sheets-Sheei 4 Patented Dec. 16, 194i COIL FEEDING APPARATUS Stone Nyberg, Dover, Ohio, assignor to Agnes J.

Reeves Greer, Morgantown, W. Va.

Application April 29, 1939, Serial No. 270,732

3 Claims.

The invention relates to mechanism for opening the outer end of a coil of metal and feeding the same to a recoiler, and is more specifically concerned with mechanism for feeding a coil of hot rolled strip steel to a recoiler such as disclosed in Greer application Serial N0. 230,30 filed September 16, 1938 and Greer Patent No. 2,191,463, dated February 27, 1940, for loosely recoiling the coil so that it may be passed through a pickling machine of the general type disclosed in in Greer Patent No. 2,091,921 dated August 31, 1931 and Greer Patent No. 2,196,210, dated April 9, 1940. a

Difliculty has been experienced in starting the outer end of a hot rolled coil into recoilers of the general character above referred to, the outer end of the hot rolled coil being loosened or opened up and fed to the recoiler by hand.

The object of the present improvement is to provide a mechanism which will automatically feed the outer end of the co'il through a set of leveling or breaker rolls to the recoiler.

Another object is to provide two sets of cooperating guide chains for guiding the outer end of the coil to the recoiler mechanism.

A further object .is to provide means for adjusting the position of said guide chains to accommodate coils of different diameters.

A still further object is to provide means-for moving the guide chains to open or inoperative position and simultaneously moving the leveling or breaker rolls to operative position when the outer end of the coil has been received in the pinch of the feed rolls of the recoiler mechanism.

Another object of the invention is to provide means for rotating the coil after the outer end has been loosened or opened up so as to feed said outer end of the coil into the guide chains.

The above objects together with others which will be apparent from the drawings and following description or which may be later referred to may be attained by constructing the improved coil opener and feeder in the manner illustrated in the accompanying drawings in which 45 Figure 1 is a side elevation of the coil opener and feeder to which the-invention pertains;

Fig. 2, a vertical longitudinal section through the same;

Fig. 3, a top view of the machine; and

Fig. 4, a transverse sectional view taken as on the line 5-E, Fig. 2.

Similar numerals refer throughout the several views.

The coil opening apparatus is mounted in a 55 to similar parts the opened outer end of the coil into housing indicated generally at H) and the feeda ing or guiding mechanism may be carried upon a housing H located adjacent thereto.

The present application is directed to the coil feeding apparatus, and while no claim is made herein to the coil opening apparatus which forms the-subject matter of a divisional application, Serial No. 371,876, filed December 27, 1940, this coil opening mechanism is illustrated in the accompanying drawings and hereinafter described for the purpose of showing the relation of the twodevices as in actualuse.

A spaced pair of rolls [2 located in the lower portion of the housing l0 supports the coil l3 to be opened and means i provided as will be later described for rotating these rolls so as to project the feeding and guiding mechanism.

A' roll It is preferably provided in the housing [0 at a. point spaced above the rolls l2 and adapted to engage the forward side of the coil It so as to hold the coil positioned upon'the'rolls l2whi1e the coil is being unwound.

A sprocket wheel I5 is fixed upon one end of each roll I2 and sprocket chain I6 is located around said sprocket wheels to drive both rolls l2 in the same direction and at the same speed. As will be later described means is provided for driving one of the rolls [2 in the desired direction so that the rotation is transmitted to the other roll by the sprocket gearing l5i6.

For the purpose of accommodating coils of various widths, an adjustable plate Ill may be slidably. mounted at one end upon the tie rod it which is located transversely through the forward side of the housing 55.

The opposite end portion of the plate ll? is adapted to selectively engage any desired notch 19 in the plate 26 located transversely across the rear side of the housing.

In order to hold the coil rigidly against movement during the opening operation, a clamp is provided comprising the clamping jaw 26 fulcrumedas at 22 at one side of the housing It and extending through a slot 23 in the adjacent side of the housing, a lever arm 26 extending out wardly from the fulcrum and being pivotally connected as at 25 to the piston rod 29 of a fluid operated cylinder 2'3 which is hingedly mounted as at 28 upon the adjacent side of the housing id.

The cylinder Zl may be operated to withdraw the clamping jaw 25 outwardly through the opening 23 in order to place a new coil within the housing l0 after which the cylinder is operated to the position shown in Fig. 4: pressing the clamp..-

33 upon which the .journ'aled. k

ing jaw 2| tightly upon the lower portion of the coil to hold the same against movement on the rolLs I2. I

A rod 23 is slidable transversely through the housing It for the purpose of preventing the coil from lifting out of the housing during the feeding operation when the coil has been unwound to such a point that the weight of the coil will not hold it upon the rolls I2.

This rod may be operated by a fluid cylinder 33 upon the shafts 11 and 33 for guiding the upper strands of the lower chains 58.

to the piston rod 3| of which is connected the carriage 32 fixed to the outer end of the rod 23, said carriage being provided with rollers 33 rolling uponthe guide rods 34 which extend outwardly from the adjacent side of the housing I3 and may be supported at their outer ends as by I cylinder 39 which may be pivotally mounted intermediate its ends as indicated at 43, within a bifurcated bracket 4| slidably mounted upon the guide plate 42 which is transversely located relative to the housing It! and connected to the upper ends of the uprights 43, of said housing.

The bracket 4| has guide-ways 44 slidably.

mounted on the guide .ribs 35 formed upon the guide plate 42. I

The upper end of the fluid, cylinder-33 is provided with the diametrically opposed studs 43 'slidably mounted in the slots 41 of the bifurcated head 43 carried by the end of the piston 43 of and 35 for guiding the lower strands of the upper chains 51 and similar guides 32 may be supported A leveling or breaker roll 33 is journaled in the rear end, portions of the upper plates 53 and a pair of similar rolls 34 are journaled in the rear chains and rolls carried thereby may be adjusted 'relative to each other by means of a fluid cylinder 35 which may be pivotally connected to one plate as indicated at 33, the piston rods 31 thereof being pivotally connected to the adjacent plate as at 33.

v It By operating the fluid cylinders 35 it will thus, be seen that the upper and lower units of the feeding and guiding mechanism may be swung from the full line positions of Figs. 1 and 2 to the broken line position of Fig. 2, at which time the upper and lower sets of chains will be moved out the fluid cylinder 53 which is pivotally connected as at 5| to t e arm 52 carried by the bracket 4i.

Springs 5 are connected at opposite ends to the studs 43 and to pins 54 at the forward end of the bifurcated head 43 so as to normally urge the fluid cylinder 33 toward .the position shown in full lines in Figs.-l and 2. J

A screw shaft 55 is joumaled in the uprights 43 adjacent to the guide plate 42 and the internally threaded boss 53 of the bracket 41 is mounted upon said screw shaft, a hand wheel 53a being fixed upon one end of the screw shaft for adjusting the position of the fluid cylinder 33 and spud 33 transversely relative to the housing Ill.

The feeding and guiding mechanism includes two cooperating sets of endless chains 51 and 53 carried by the upper and lower spaced pairs of plates 53 and 30, respectively, said plates being tied together as by the tie'bars 3|.

The upper chains 51 are located around sprockets s2 and 63 mounted upon the spaced shafts 34 and 35, respectively, journaled in the upper plates 53.

- A pinion 33 is fixed upon end of the shaft 35 and meshes with a pinion 31 fixed upon the shaft upper pair.of plates 53 are A gear wheel 33 is fixed upon the. shaft 33 and meshes with a pinion 13 upon the shaft 1| of the motor 12 which is provided for driving the chains 51 and 53 as well as the rolls I2 in a mannerto be later described.

A gear 13 of the same size and pitch as'the gear 33 is hired upon the shaft 14, upon which the lower plates 33 are joumaled, said gear meshing with the gear 39. I

A pinion 15 is fixed upon the shaft 14 and meshes with a pinion 13 fixed upon the shaft 11. The lower chains 53 are located around sprocket Guides 3| may be supported by the shafts 34 figure directly below the normal or inoperative commodate coils of different diameters, a fluid cylinder 33 is provided. This cylinder may be pivotally mounted as at-33 upon the floor or other stationary support, and the piston rod 3| thereof is pivotally connected as at 32 to a bracket 33 mounted upon a cross bar 34 connected" to the lower edges of the lower plates 33. g I

It will be seen that the upper and lower units of the feeding and guiding mechanism being pivotally mounted upon the shafts 33' and 14, respectively, at-their rear ends and being connected together at their forward ends by the fluid cylinder 35 and piston 31, they may be swung upward or downward. as a unit by operation of the fluid cylinder 33; i

A sprocket wheel 35 is fixed upon the shaft 14 and connected by a sprocket chain 33 with a sprocket wheel 31 fixed upon one of the rolls I2 and a clutch as indicated at 33 may be prowheel 31 to said roll.

In the operation of the improved machine to open the outer end of a coil and feed the same to the recoiling machine, a hot rolled coil as indi-' cated at I3 is placed upon the rolls l2 and the clutch 33 is thrown in to rotate the rolls until the coil assumes the position shown in Fig. 2 with the outer end E thereof located as shown in said position of the-spud 33.

The clutch is thrown out when the coil reaches this position and the fluid cylinder 21 i operated to move the clamping jaw 2| down into clamping position upon the lower portion of the coil clamping the same against movement on the rolls I 2. t It will be understood that the fluidcylinder 53 may be operated to swing the cylinder 33 and spud 33to the broken line position shown at A in Fig. 2. in order to facilitate the placing of a coil upon the rolls I2. I

With the cylinder 33 in the full line position shown in Fig. 2 the sameds operated to force the spud 33 downward beneath the outer end E of the coil, loosening said outer end and bending it outward from the coil through the several broken 2,286,087 line positions indicated upon Fig. 2, the spud piv:

otally moving upon the piston rod 38 to accommodate itself to the outward movement of the end of the coil.

The spud is then withdrawn to the full line position of Fig. 2, the cylinder 21 is operated to release the clamping Jaw 2|, and the clutch 98 is thrown in so as to rotate the rolls in the direction of the arrows shown in Fig. 2, rotating the coil clockwise as viewed in said figure;

The upper and lower sets of chains 51 and 58, respectively, of the feeding and guiding mechanism will have been previously moved to closed position, as shown in Fig. 2, by operation of the fluid cylinder 85, and will have been adjusted to I claim:

1. Cell feeding apparatus including roll for supporting a coil, upper and lower piv'oted plates located adiacentto the-coil, cooperating,,endles's chains carried by said plates, at one side of the pivotal points of theplates, cooperating leveling rolls carried by said plates on the other side of said pivotal points, means for swinging said the proper height to accommodate the size of coil,

The feeding and guiding chains 51 and 98 will be moved in the direction of the arrows shown in Fig. 2 by operation of themotor and when the clutch 98 is thrown in, the rolls 52 will be rotated in the direction of the arrows shownin said fi me, through the chains 86 and ls rotating the coil clockwise as viewed in said figure and projecting the loosened outerend E therecg onto the lower chains 58 and then between the pper and lower chains flattening down the end of the coil.

The fluid cylinder 85 may then be operated to open the chains 51 and 58, moving them to the broken line positions shown in Fig. 2, at which time the leveling rolls 83 and 84 are brought into operative position to level the strip as it is passed. I

through the same to the feed rolls 99 of the recoiling machine.

As the rolls I! continue to rotate, the coil will be unwound and fed through the leveling rolls 83 and 84 and into the rcoiling machine.

When the coil is nearly .unwound and'becomes so light in weight that its own weight will not hold it down upon the rolls 12, the rod 29 will prevent the coil from lifting out of the housing "I as the remainder thereof is fed into the re-' coiler.

plates in opposite directions upon their pivotal points to move either the chains or leveling rolls into operative position, means foroperating said chains and means for rotating said coil 'supporting' rolls to rotate thecoil and feed the outer end of the coil between the chains and leveling rolls so as to unwind the coil.

2. Coil feeding apparatus including rolls for' supporting a coil, cooperating, endless chains carried by said plates at one side of the pivotal points of the plates, cooperating leveling rolls carried by said plates on the other side of said pivotal points, means for swinging said plates in opposite directions upon their pivotal points to coil and feed the outer end of the coil between the points of theplates, a plurality of endless chains carried by each pair of pivots, means for driving said endless chains in unison, cooperating leveling rolls carried'by said plates on the other side of said pivotal points, a fluid cylinder pivotally connected to one pair of plates, and a piston in said cylinder pivotally connected to the other pair of plates for swinging said plates in opposite directions upon the pivotal points to move either the endlesschaiis or leveling rollsinto operative position.

STONE NYBERG. 

